CoercivityenhancementofNd2Fe14B/α-Fenanocompositemagnetsthroughneodymiumdiffusionunderannealing

被引：0

作者：

王聿璞 ^{[1
]}

游才印 ^{[1
,2
]}

王军伟 ^{[1
]}

田娜 ^{[1
]}

卢正欣 ^{[1
]}

葛利玲 ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Xi'an University of Technology

[2] State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing

来源：

JournalofRareEarths | 2012年 / 30卷 / 08期

关键词：

coercivity; nanocomposite magnet; microstructure; Nd diffusion; rare earths;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

The coercivity enhancement of ball-milled Nd2Fe14B/α-Fe nanocomposite magnets was investigated. It was found that the coercivity could be enhanced through mixing a small amount of Nd powder with as-milled Fe-rich Nd-Fe-B powders. The annealed samples were investigated by means of X-ray diffraction, scanning electron microscopy and magnetic measurement systems. Under annealing, some of Nd powders promoted the formation of hard magnetic phase Nd2Fe14B. On the other hand, a few of Nd would diffuse into the interface of Nd2Fe14B/α-Fe nanocomposite to compensate for the loss of the interfacial magnetic anisotropy. These two features are all beneficial to the coercivity.

引用

页码：757 / 760

页数：4

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